FAA to Patch Dassault Wings Before They Leave Pilots Hanging
Published Date: 3/10/2026
Proposed Rule
Summary
The FAA wants to fix a safety issue on certain Dassault Falcon 7X airplanes where the wing slats might not extend properly during landing, and the pilots wouldn’t get a warning. They’re proposing software updates and manual changes to keep flights safe. Owners should act soon, as comments are due by April 24, 2026, and these fixes might cost some time and money but will keep everyone flying safely.
Analyzed Economic Effects
3 provisions identified: 2 benefits, 1 costs, 0 mixed.
Owners Must Upgrade MAIC Software
If you own or operate a Dassault FALCON 7X identified in EASA AD 2025-0092, the FAA proposes requiring an upgrade to the maintenance and avionics interface computer (MAIC) software (Dassault modification M2138), and, as applicable, prior modifications M1968 or M1655, plus a revision to the airplane flight manual. The FAA estimates the action affects 25 U.S.-registered airplanes, could take up to 24 work-hours at $85 per hour, parts costs up to $4,900, and total cost on U.S. operators up to $122,500; special tooling rental rates are listed as $929, $981, and $950 per day.
Restores Crew Alerts for Slat Failures
The rule would require software changes and AFM procedure revisions to restore crew awareness when an inboard slat fails to extend during landing, addressing a condition that could reduce lift margin and reduce control during approach and landing. The FAA and EASA describe this as an unsafe condition to be fixed to keep flights safer.
Manufacturer May Cover Some Compliance Costs
The manufacturer advises that some or all of the costs to comply with the proposed AD may be covered under warranty, which could reduce the money affected operators must pay to implement the required modifications and AFM changes.
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